一种耦合电路分析的磁驱动飞片数值计算方法

张旭平; 赵剑衡; 谭福利; 王桂吉; 罗斌强; 莫建军; 种涛; 孙承纬; 刘仓理

doi:10.11883/1001-1455(2014)03-0257-07

一种耦合电路分析的磁驱动飞片数值计算方法

doi: 10.11883/1001-1455(2014)03-0257-07

1.
中国工程物理研究院流体物理研究所，四川绵阳 621999
2.
中国工程物理研究院，四川绵阳 621999

基金项目: 国家自然科学基金科学仪器基础研究专款项目（10927201）

详细信息

作者简介:
张旭平(1988—), 男, 硕士

中图分类号: O361.3; O521.3
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- 被引次数: 0
出版历程
- 收稿日期: 2012-11-13
- 修回日期: 2013-01-27
- 刊出日期: 2014-05-25

A method for magnetically driven flyer simulation coupled with electrical circuit of generator

1.
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China
2.
China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Funds: Supported by the National Natural Science Foundation of China (10927201, 11176002)

More Information

Corresponding author: Zhao Jian-heng, jianh_zhao@caep.cn

摘要

摘要: 分析了磁驱动飞片实验和数值计算的研究现状。根据磁驱动实验装置等效电路建立了可带入参数为表达式的电路计算程序。利用建立好的电路计算程序结合LS－DYNA980 MHD计算软件，建立了一种可以耦合电路分析的磁驱动飞片计算方法。采用这种方法模拟了CQ－4的发射飞片实验，计算结果与实验基本符合。最后分析了极板长度h分别为20、25、30 mm并且充电电压73 k V时磁驱动飞片的速度和平面性，认为实验中极板长度取25 mm比较合适。
- 流体力学 /
- 电路计算 /
- 动态电感 /
- 磁驱动 /
- 磁扩散
Abstract: A calculation procedure of equivalent electrical circuit was programmed.Combining circuit calculation program with LS－DYNA980 MHD, a method for magnetically driven flyer simulation coupled with electrical circuit was proposed to simulate a real experimental process.The calculation result coupled with electrical circuit can be obtained.Then the CQ－4 experiment was simulated by using this method, the results of simulation agree well with the experimental results.Optimization of strip line length h＝25 mm is achieved by comparing flatness and velocity of flyer plates under different strip line length h＝20, 25, 30 mm conditions when the charge voltage is 73 k V.
- fluid mechanics /
- circuit calculation /
- dynamic inductance /
- magnetically driven /
- magnetic diffusion

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图 1 脉冲加载装置电路图

Figure 1. Circuit of pulsed power generator

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图 2 模拟和实验电流曲线对比

Figure 2. Comparison of simulated and measured load currents

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图 3 计算流程示意图

Figure 3. Schematic diagram of calculation flow

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图 4 磁驱动飞片负载物理模型

Figure 4. Physics model of magnetically driven flyer

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图 5 负载电阻变化曲线

Figure 5. Resistance varied with time

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图 6 驱动飞片实验电流和计算电流比较

Figure 6. Measured and calculated currents of flyer plate driven experiments

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图 7 不同极板长度h时飞片自由面速度比较

Figure 7. Comparison of free surface velocities under different strip line lengths

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图 8 极板长度h不同时沿极板长度方向飞片的平面性比较

Figure 8. Comparison of the flatness under different strip line lengths

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参考文献(14)

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